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Description: Allow reducing size of xorriso-created rescue images
This lets us create smaller images that will fit on floppy disks. It has
been approved by the upstream maintainer but has not yet been applied.
Author: Thomas Schmitt <scdbackup@gmx.net>
Origin: other, http://lists.gnu.org/archive/html/grub-devel/2010-05/msg00100.html
Forwarded: yes
Last-Update: 2010-06-02
Index: b/util/grub-mkrescue.in
===================================================================
--- a/util/grub-mkrescue.in
+++ b/util/grub-mkrescue.in
@@ -44,6 +44,7 @@
grub_mkimage=${bindir}/`echo grub-mkimage | sed ${transform}`
xorriso=xorriso
+diet=no
# Usage: usage
# Print the usage.
@@ -59,6 +60,7 @@
--rom-directory=DIR save rom images in DIR [optional]
--xorriso=FILE use FILE as xorriso [optional]
--grub-mkimage=FILE use FILE as grub-mkimage
+ --diet apply size reducing measures [optional]
$self generates a bootable rescue image with specified source files, source
directories, or mkisofs options listed by: xorriso -as mkisofs -help
@@ -133,6 +135,9 @@
--xorriso=*)
xorriso=`echo "${option}/" | sed 's/--xorriso=//'` ;;
+ --diet)
+ diet=yes ;;
+
*)
source="${source} ${option} $@"; break ;;
esac
@@ -307,7 +312,14 @@
fi
# build iso image
-"${xorriso}" -as mkisofs -graft-points ${grub_mkisofs_arguments} --protective-msdos-label -o ${output_image} -r ${iso9660_dir} --sort-weight 0 / --sort-weight 1 /boot ${source}
+if [ "${diet}" = yes ]; then
+ if [ -e "${output_image}" ]; then
+ rm "${output_image}" || exit 1
+ fi
+ "${xorriso}" -report_about HINT -as mkisofs -graft-points -no-pad ${grub_mkisofs_arguments} --protective-msdos-label -r ${iso9660_dir} --sort-weight 0 / --sort-weight 1 /boot ${source} | cat >"${output_image}"
+else
+ "${xorriso}" -report_about HINT -as mkisofs -graft-points ${grub_mkisofs_arguments} --protective-msdos-label -o ${output_image} -r ${iso9660_dir} --sort-weight 0 / --sort-weight 1 /boot ${source}
+fi
rm -rf ${iso9660_dir}
rm -f ${embed_img}
|
